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ntdll: Go back to growing the heap in smaller increments once we start running out of address space.

This commit is contained in:
Alexandre Julliard 2009-06-30 14:07:18 +02:00
parent c03991be68
commit 5f23006441
1 changed files with 12 additions and 5 deletions
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17
dlls/ntdll/heap.c
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@ -927,11 +927,18 @@ static ARENA_FREE *HEAP_FindFreeBlock( HEAP *heap, SIZE_T size,
total_size = size + ROUND_SIZE(sizeof(SUBHEAP)) + sizeof(ARENA_INUSE) + sizeof(ARENA_FREE);
if (total_size < size) return NULL; /* overflow */
if (!(subheap = HEAP_CreateSubHeap( heap, NULL, heap->flags, total_size,
max( heap->grow_size, total_size ) )))
return NULL;
if (heap->grow_size < 128 * 1024 * 1024) heap->grow_size *= 2;
if ((subheap = HEAP_CreateSubHeap( heap, NULL, heap->flags, total_size,
max( heap->grow_size, total_size ) )))
{
if (heap->grow_size < 128 * 1024 * 1024) heap->grow_size *= 2;
}
else while (!subheap) /* shrink the grow size again if we are running out of space */
{
if (heap->grow_size <= total_size || heap->grow_size <= 4 * 1024 * 1024) return NULL;
heap->grow_size /= 2;
subheap = HEAP_CreateSubHeap( heap, NULL, heap->flags, total_size,
max( heap->grow_size, total_size ) );
}
TRACE("created new sub-heap %p of %08lx bytes for heap %p\n",
subheap, subheap->size, heap );